20448470 has 32 divisors (see below), whose sum is σ = 42251328. Its totient is φ = 6979968.

The previous prime is 20448469. The next prime is 20448511. The reversal of 20448470 is 7484402.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20012 + ... + 21008.

It is an arithmetic number, because the mean of its divisors is an integer number (1320354).

Almost surely, 2^20448470 is an apocalyptic number.

20448470 is an abundant number, since it is smaller than the sum of its proper divisors (21802858).

20448470 is a wasteful number, since it uses less digits than its factorization.

20448470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304.

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 20448470 is about 4521.9984520121. The cubic root of 20448470 is about 273.4556742968.

The spelling of 20448470 in words is "twenty million, four hundred forty-eight thousand, four hundred seventy".